Improvement in carriage-wheels



S-R.BRYANT.

Improvement in Carriage-Wheels.

No. 130,621. 4 Patented Aug.20,1872.

at 41- k UNITED S ATEs PATENT OT SAMUEL R. BRYANT, OF WATERFORD, PENNSYLVANIA.

IMPROVEMENT IN CARRIAGE-WHEELS- Specification forming part of Letters Patent No 130,621, dated August 20, 1872.

Specification describing a new and Improved Carriage-Wheel, invented by SAMUEL R. BRYANT, of Waterford, in the county of Erie and State of Pennsylvania.

Figure l is a sectional elevation of the hub of my improved carriage-wheel. Fig. 2 is a horizontal section of the metal disks between which the spokes are clamped. Fig. 3 shows the spokes arranged to present a plain face or surface. Fig. 4 shows their form and arrangement when arranged zigzag. Fig. 5 shows the same mode of locking with the spokes arranged to present a plain face, as in Fig. 3. Fig. 6 shows the zigzag arrangement of spokes with wedges filling the spaces between them.

My invention relates to the mode of lockin g the spokes by means of grooves and wedges, and-the mode of fitting the spokes and pipeboX together, as hereinafter described.

In the drawing, D represents the pipe-box; E E, the wooden portions of the hub; G O,the. metalrilobed disks, between which the spokes are secured, and A A, the nuts on the ends of the pipe-box, which serve to clamp the parts E between themselves and the disks G. The disks are screwed upon the pipe-box at b, and a preferably coarser thread is formed on the central portion 61 of the box, to adapt it to be screwed into the tubular opening formed by the converging ends of the spokes, as shown at e, Fig. 3. This mode of connecting the spokes and pipe-box may be employed with either a zigzag or plain-faced arrangement of the former, and the disks 0 G will, in either case, clamp the spokes between them.

To look together the spoke tenons so that lateral movement of one upon the other shall be prevented, I form longitudinal grooves in their contiguous surfaces. If the wheel is to be plain-faced, as in Fig. 3, I form a groove, a, in but one side of each spoke-tenon B, and form a corresponding rib or beveled projection, 0, on the other side. Thus the spokes fit together, as in Fig. 5. If the spokes are to be arranged zigzag, as in Fig. 6, I form a groove, a, in each side of the same, so that they fit or look together, as in Fig. 4.

To prevent longitudinal movement of the spokes one upon another, transverse perforations maybe formed, as shown at i, Figs. 3, 4,

and 5, to receive locking-pins of any suitable material. This expedient has, however, been employed by others.

WVhen the spokes are arranged zigzag, as

shoulders, as specified.

3. The wedges Gr, arranged with the zigzag spokes.

SAMUEL R. BRYANT. XVitn esses J on v BOWMAN, HUNTER SMITH. 

